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| author | raj <raj@FreeBSD.org> | 2008-02-24 19:22:53 +0000 |
|---|---|---|
| committer | raj <raj@FreeBSD.org> | 2008-02-24 19:22:53 +0000 |
| commit | 69575dab5278af6417ba186bc878ac07a058e66c (patch) | |
| tree | f597ddba01b642786124c14eddc6e4bf3de65a48 /sys/powerpc/include/float.h | |
| parent | a1bea77d138ffb6cfd42610b2b91e82d8710297d (diff) | |
| download | FreeBSD-src-69575dab5278af6417ba186bc878ac07a058e66c.zip FreeBSD-src-69575dab5278af6417ba186bc878ac07a058e66c.tar.gz | |
Let PowerPC world optionally build with -msoft-float. For FPU-less PowerPC
variations (e500 currently), this provides a gcc-level FPU emulation and is an
alternative approach to the recently introduced kernel-level emulation
(FPU_EMU).
Approved by: cognet (mentor)
MFp4: e500
Diffstat (limited to 'sys/powerpc/include/float.h')
| -rw-r--r-- | sys/powerpc/include/float.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/sys/powerpc/include/float.h b/sys/powerpc/include/float.h index 5ac715a..d20736d 100644 --- a/sys/powerpc/include/float.h +++ b/sys/powerpc/include/float.h @@ -36,12 +36,16 @@ #include <sys/cdefs.h> +#ifndef _SOFT_FLOAT __BEGIN_DECLS extern int __flt_rounds(void); __END_DECLS +#define FLT_ROUNDS __flt_rounds() +#else +#define FLT_ROUNDS -1 +#endif #define FLT_RADIX 2 /* b */ -#define FLT_ROUNDS __flt_rounds() #if __ISO_C_VISIBLE >= 1999 #define FLT_EVAL_METHOD 1 /* operands promoted to double */ #define DECIMAL_DIG 35 /* max precision in decimal digits */ |
